Exercise stand



FIG. 1 is a perspective view of an exercise stand with screw fasteners shown in phantom lines;

FIG. 2 is a rear view of the exercise stand;

FIG. 3 is a front view of the exercise stand;

FIG. 4 is a top view of the exercise stand;

FIG. 5 is a bottom view of the exercise stand;

FIG. 6 is a left side view of the exercise stand; and,

FIG. 7 is a right side view of the exercise stand.

The broken line showing is for the purpose of illustrating portions of the exercise stand which form no part of the claimed design. 

CLAIM I claim the ornamental design for an exercise stand, as shown and described. 